Passengers would be able to log into a Ryanair app using their iPads or smartphones. They could then pay to gamble, play games, watch a movie — or even view sex scenes.

Mr O’Leary told The Sun: “I’m not talking about having it on screens on the back of seats for everyone to see. It would be on handheld devices.

A spokesman said: “Nothing has been decided as yet.” But Bob Atkinson, of Travelsupermarket, said: “There may be a market for porn in hotels, but that’s in the privacy of a room. Anyone could see it on a plane. It’s wrong.”